CVE-2026-45411
What it is
vm2 is an open source vm/sandbox for Node.js. Prior to 3.11.3, it is possible to catch a host exception using the yield* expression inside an async generator. When the generator is closed using the return function, the value is awaited on and exceptions thrown in the then call will be caught by the runtime and passed to the yield* iterator as the next value. This allows attackers to write code which can escape from the VM2 sandbox and execute arbitrary commands on the host system. This vulnerability is fixed in 3.11.3.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of data exposure, data tampering, service disruption.
- Exploit odds
- 0.6% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.6% in the next 30 days (EPSS).
- Severity: 9.8 CRITICAL (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.6% · EPSS, next 30 days
- Weakness
- CWE-668 · Resource exposure
- Record status
- Modified
Affected
- vm2 Project vm2 < 3.11.3
Attack profile CVSS 3.1 · 9.8
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-45411.md and follow it. Check whether this project is affected by CVE-2026-45411. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/patriksimek/vm2/security/advisories/GHSA-248r-7h7q-cr24
- https://github.com/patriksimek/vm2/security/advisories/GHSA-248r-7h7q-cr24
References
- https://github.com/patriksimek/vm2/security/advisories/GHSA-248r-7h7q-cr24
- https://access.redhat.com/errata/RHSA-2026:50850
- https://access.redhat.com/security/cve/CVE-2026-45411
- https://bugzilla.redhat.com/show_bug.cgi?id=2477210
- https://github.com/patriksimek/vm2/security/advisories/GHSA-248r-7h7q-cr24
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45411.json